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doc: add doc for initial-cluster-token

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Xiang Li 2014-10-30 14:13:33 -07:00
parent 3dfb6723b2
commit 8e633db5cb
2 changed files with 9 additions and 6 deletions
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9
Documentation/0.5/clustering.md
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@ -25,16 +25,19 @@ ETCD_INITIAL_CLUSTER_STATE=new
-initial-cluster-state new
```
If you are spinning up multiple clusters (or creating and destroying a single cluster) with same configuration for testing purpose, it is highly recommended that you specify a unique `initial-cluster-token` for the different clusters.
By doing this, etcd can generate unique cluster IDs and member IDs for the clusters even if they otherwise have the exact same configuration. This can protect you from cross-cluster-interaction, which might corrupt your clusters.
On each machine you would start etcd with these flags:
```
$ etcd -name infra0 -initial-advertise-peer-urls https://10.0.1.10:2379 \
$ etcd -name infra0 -initial-advertise-peer-urls https://10.0.1.10:2379 initial-cluster-token etcd-cluster-1\
-initial-cluster infra0=http://10.0.1.10:2379,infra1=http://10.0.1.11:2379,infra2=http://10.0.1.12:2379 \
-initial-cluster-state new
$ etcd -name infra1 -initial-advertise-peer-urls https://10.0.1.11:2379 \
$ etcd -name infra1 -initial-advertise-peer-urls https://10.0.1.11:2379 initial-cluster-token etcd-cluster-1\
-initial-cluster infra0=http://10.0.1.10:2379,infra1=http://10.0.1.11:2379,infra2=http://10.0.1.12:2379 \
-initial-cluster-state new
$ etcd -name infra2 -initial-advertise-peer-urls https://10.0.1.12:2379 \
$ etcd -name infra2 -initial-advertise-peer-urls https://10.0.1.12:2379 initial-cluster-token etcd-cluster-1\
-initial-cluster infra0=http://10.0.1.10:2379,infra1=http://10.0.1.11:2379,infra2=http://10.0.1.12:2379 \
-initial-cluster-state new
```

6
Procfile
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@ -1,5 +1,5 @@
# Use goreman to run `go get github.com/mattn/goreman`
etcd1: bin/etcd -name node1 -listen-client-urls http://127.0.0.1:4001 -advertise-client-urls http://127.0.0.1:4001 -listen-peer-urls http://127.0.0.1:7001 -initial-advertise-peer-urls http://127.0.0.1:7001 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003' -initial-cluster-state new
etcd2: bin/etcd -name node2 -listen-client-urls http://127.0.0.1:4002 -advertise-client-urls http://127.0.0.1:4002 -listen-peer-urls http://127.0.0.1:7002 -initial-advertise-peer-urls http://127.0.0.1:7002 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003' -initial-cluster-state new
etcd3: bin/etcd -name node3 -listen-client-urls http://127.0.0.1:4003 -advertise-client-urls http://127.0.0.1:4003 -listen-peer-urls http://127.0.0.1:7003 -initial-advertise-peer-urls http://127.0.0.1:7003 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003' -initial-cluster-state new
etcd1: bin/etcd -name node1 -listen-client-urls http://127.0.0.1:4001 -advertise-client-urls http://127.0.0.1:4001 -listen-peer-urls http://127.0.0.1:7001 -initial-advertise-peer-urls http://127.0.0.1:7001 -initial-cluster-token etcd-cluster-1 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003' -initial-cluster-state new
etcd2: bin/etcd -name node2 -listen-client-urls http://127.0.0.1:4002 -advertise-client-urls http://127.0.0.1:4002 -listen-peer-urls http://127.0.0.1:7002 -initial-advertise-peer-urls http://127.0.0.1:7002 -initial-cluster-token etcd-cluster-1 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003' -initial-cluster-state new
etcd3: bin/etcd -name node3 -listen-client-urls http://127.0.0.1:4003 -advertise-client-urls http://127.0.0.1:4003 -listen-peer-urls http://127.0.0.1:7003 -initial-advertise-peer-urls http://127.0.0.1:7003 -initial-cluster-token etcd-cluster-1 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003' -initial-cluster-state new
proxy: bin/etcd -proxy=on -bind-addr 127.0.0.1:8080 -initial-cluster 'node1=http://localhost:7001,node2=http://localhost:7002,node3=http://localhost:7003'